CN215911904U - Mutual backup control system for direct-current power supply modules - Google Patents
Mutual backup control system for direct-current power supply modules Download PDFInfo
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- CN215911904U CN215911904U CN202121562580.5U CN202121562580U CN215911904U CN 215911904 U CN215911904 U CN 215911904U CN 202121562580 U CN202121562580 U CN 202121562580U CN 215911904 U CN215911904 U CN 215911904U
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Abstract
The utility model provides a mutual backup control system of direct current power supply modules, which comprises a main control unit and a plurality of direct current power supplies, wherein the direct current power supplies are connected in parallel and are connected with a load after being interlocked through direct current contactors, the main control unit controls one or more direct current power supplies to supply power to the load according to power supply parameters of the direct current power supplies, and the rest direct current power supplies are standby power supplies. The mutual backup control system of the direct-current power supply modules can realize seamless switching of the direct-current power supply and ensure continuous power on of the load.
Description
Technical Field
The utility model relates to the technical field of power supplies and circuits, in particular to a mutual backup control system of a direct-current power supply module.
Background
At present, the requirement on the reliability of power supply in the electrical industry fields of electric power, communication and the like is high, particularly in the communication industry, the grade of cabinet equipment in a machine room is high, a precise inter-row air conditioner needs to continuously operate for 24 hours to keep a good operation environment for the cabinet equipment, due to space limitation, the precise inter-row air conditioner cannot select a high-air-volume alternating current fan and only can select a direct current brushless motor, the normal operation of the fan in the air conditioner is one of the conditions for ensuring the stable operation of the machine room, but the current low-air-volume precise inter-row air conditioner adopts a single power supply, once the power supply fails, the operation of the fan can be stopped, the operation of the cabinet equipment in the machine room is influenced, in order to improve the reliability of power supply, the double power supplies are easily thought to be adopted, in the prior art, the direct current double power supplies generally adopt auxiliary contact interlocking for a control loop of a two-way power supply switching contactor, when each path of direct current power supply detects that the closed contact of the other path of contactor is connected, the contactor of each path of direct current power supply is started immediately to supply power to the load.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving the above problems and deficiencies, and to providing a dc power module mutual backup control system capable of continuously supplying power to a load.
In order to achieve the purpose, the utility model provides a mutual backup control system of a direct current power supply module, which adopts the technical scheme that:
a mutual backup control system of direct current power supply modules comprises a main control unit and a plurality of direct current power supplies, wherein the direct current power supplies are connected in parallel and are connected with a load after being interlocked through direct current contactors, the main control unit controls one or more direct current power supplies to supply power to the load according to power supply parameters of the direct current power supplies, and the rest direct current power supplies are standby power supplies.
Furthermore, the number of the direct current power supplies is two, and one direct current power supply is used for standby under the control of the main control unit.
Further, the main control unit presets a power parameter range of the direct current power supply in a normal working state, and when the power parameter of the direct current power supply in a power supply state is detected to be out of the preset power parameter range, the main control unit controls the direct current power supply in the current power supply state to stop supplying power and synchronously starts other direct current power supplies to continuously supply power.
Further, the main control unit enables the direct current power supply in the current power supply state to stop supplying power by disconnecting the direct current contactor connected with the direct current power supply in the current power supply state; and closing the direct current contactor connected with the direct current power supply in the standby state to supply power.
Further, the main control unit stores the service time and the polling time of each working direct-current power supply, and when the service time of the direct-current power supply currently in the power supply state is equal to the polling time, the main control unit controls the on-off of the direct-current contactor so as to switch the power supply state of the direct-current power supply.
Further, the direct current power supply is a drawer type power supply.
Furthermore, the power supply failure information display device further comprises a display screen for displaying power supply failure information.
Further, the system comprises a big data platform for receiving fault information and informing an administrator.
Furthermore, each direct current power supply comprises a single chip microcomputer, and the single chip microcomputer detects real-time power supply parameters of the direct current power supply and transmits the real-time power supply parameters to the main control unit.
In summary, compared with the prior art, the mutual backup control system for the dc power supply modules provided by the present invention has the advantages that the main control unit judges the working state of the current working power supply by monitoring whether the power supply parameter of the dc power supply during working is within the preset power supply parameter range in real time, and once the power supply parameter of the current working power supply is not within the preset power supply parameter range, judges that the current working dc power supply has a fault or insufficient voltage, and the main control unit sends out an instruction for disconnecting the dc contactor connected with the current working dc power supply and closing the dc contactor connected with the standby dc power supply, so as to realize seamless switching of the dc power supply and ensure continuous power supply of the load; the voltage data and the fault information can be displayed on a display screen in time through the main control unit and transmitted to the big data platform, so that the fault can be found and processed in time and the low-voltage direct-current power supply can be charged conveniently; in a normal working state, the main control unit performs polling control on each two direct current power supplies to ensure the service life of the power supplies; the direct current power supply adopts a drawer type power supply, so that the power supply can be replaced quickly once a fault occurs, and the effectiveness of the mutual backup power supply is further ensured.
Description of the drawings:
FIG. 1: the utility model provides an electrical schematic diagram of two DC power supplies which are mutually prepared;
the system comprises a main control unit 1, a direct-current power DY1, a direct-current power DY2, a direct-current contactor KM1, a direct-current contactor KM2 and a load M.
Detailed Description
The utility model is described in further detail below with reference to the following figures and detailed description.
The present embodiment describes the present invention in a use scenario in which two dc power supplies are mutually provided, but the present invention is not limited in any way, and any modification or improvement based on the teaching of the present invention falls within the protection scope of the present invention.
The utility model provides a mutual backup control system of direct current power supply modules, which comprises a main control unit 1 and a plurality of direct current power supplies, wherein the direct current power supplies are connected in parallel and are connected with a load after being interlocked through direct current contactors, the main control unit controls one or more direct current power supplies to supply power to the load according to power supply parameters of the direct current power supplies, and the other direct current power supplies are standby power supplies.
As shown in fig. 1, the mutual standby control system of the dc power module provided in this embodiment includes a main control unit 1, a dc power DY1, a dc power DY2, a dc contactor KM1, a dc contactor KM2, and a load M. The direct-current power DY1 is connected with the direct-current contactor KM2, the direct-current power DY2 is connected with the direct-current contactor KM1, the direct-current contactor KM1 and the direct-current contactor KM2 are connected with the load M after being interlocked through circuits, one power is prevented from flowing backwards to the other power when being output, the direct-current power DY1 and the direct-current power DY2 are ensured to be provided with one power and only one power supplies power to the load M under the working state, and the normal operation of the load M is ensured.
In the initial working state, according to the preset program of the main control unit 1, the direct current power DY1 supplies power to the load M, and the power parameter range that two DC power supplies can normally supply power and the polling time that each DC power supply can work are prestored in the main control unit 1, the main control unit 1 monitors the power parameter and the service time of the DC power supply DY1 in real time, when the power parameter of the dc power DY1 monitored by the main control unit 1 is always within the preset power parameter range of the dc power DY1 in the normal operating state, if the service time of the direct current power DY1 is equal to the pre-stored polling time, the main control unit 1 simultaneously sends two instructions of opening the direct current contactor KM2 and closing the direct current contactor KM1, switches the direct current power DY2 to supply power to the load M, through the polling control of the direct current power supply, the service life of the direct current power supply and the effectiveness of the mutual backup direct current power supply are ensured.
When the direct-current power DY1 works, the main control unit 1 monitors that the power supply parameter of the direct-current power DY1 is not within the preset power supply parameter range, the direct-current power DY1 is judged to be in fault, the main control unit 1 synchronously sends out an instruction of disconnecting the direct-current contactor KM2 and closing the direct-current contactor KM1, and the direct-current power DY2 is seamlessly switched to continuously supply power to a load M; when the direct-current power DY2 works, the main control unit 1 monitors that the power supply parameter of the direct-current power DY2 is not within the preset power supply parameter range, the direct-current power DY2 is judged to be in fault, the main control unit 1 sends an instruction of disconnecting the direct-current contactor KM1 and closing the direct-current contactor KM2, and the direct-current power DY1 is seamlessly switched to continuously supply power to the load M.
When the above situation occurs, that is, when the currently working dc power supply fails, the main control unit 1 sends out an instruction for controlling the opening and closing of the dc contactor, transmits the failure information of the currently working dc power supply to the display screen for display, and notifies an administrator through the large data platform, so as to facilitate the timely discovery and processing of the failure, wherein the dc power supply DY1 and the dc power supply DY2 adopt drawer type power supplies, which facilitates the quick replacement of maintenance personnel, and further ensures the effectiveness of the mutually backup dc power supplies.
Preferably, the communication between the main control unit 1 and the direct current power DY1, the direct current power DY2 and the display screen adopts an RS485 communication protocol for agreement, and the main control unit 1 transmits the fault information to the big data platform through RS485 communication or CAN communication or Ethernet.
In practical applications, a plurality of parallel direct current power supplies can be connected with the load M after being interlocked through the direct current contactor and the corresponding circuit to supply power to the load M. When a plurality of direct current power supplies are arranged for power supply, a multi-standby mode can be adopted, the switching between the power supply direct current power supply and the standby direct current power supply is controlled by the method, and the power supply sequence of each direct current power supply is arranged in the main control unit 1, so that the service life of each direct current power supply is prolonged. Similarly, a multi-purpose and multi-standby power supply mode can be realized, a plurality of direct current power supplies are divided into a plurality of groups, each group at least comprises one direct current power supply, and the main control unit 1 switches the power supply state of each group of direct current power supplies according to the method.
It should be noted that: the dc power supply module mutual backup control system provided in this embodiment can be widely applied to a scenario that a dc power supply is required to continuously and uninterruptedly supply power to a load, where the number of the dc power supplies is at least 2, and in an actual usage scenario, the size of the dc power supply and the number of the dc power supplies may be selected according to the power of the load M, where the size and the number of the dc power supplies are not limited, and the number of the load M may be 1 or more.
In summary, compared with the prior art, the mutual backup control system for the dc power supply modules provided by the present invention has the advantages that the main control unit judges the working state of the current working power supply by monitoring whether the power supply parameter of the dc power supply during working is within the preset power supply parameter range in real time, and once the power supply parameter of the current working power supply is not within the preset power supply parameter range, judges that the current working dc power supply fails, and the main control unit sends an instruction to disconnect the dc contactor connected to the current working dc power supply and to close the dc contactor connected to the standby dc power supply, so as to implement seamless switching of the dc power supply and ensure continuous power supply of the load; the fault information can be displayed on the display screen in time through the main control unit and transmitted to the big data platform, so that the fault can be found and processed in time conveniently; under a normal working state, the main control unit performs polling control on at least two direct current power supplies to ensure the service life of the power supplies; the direct current power supply adopts a drawer type power supply, so that the power supply can be replaced quickly once a fault occurs, and the effectiveness of the mutual backup power supply is further ensured.
Similar solutions can be derived as described above in connection with the given solution content. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. A mutual backup control system of direct current power supply modules is characterized in that: the direct-current power supply system comprises a main control unit and a plurality of direct-current power supplies, wherein the direct-current power supplies are connected in parallel and are connected with a load after being interlocked through direct-current contactors, the main control unit controls one or more direct-current power supplies to supply power to the load according to power supply parameters of the direct-current power supplies, and the rest direct-current power supplies are standby power supplies.
2. The mutual-backup control system for DC power supply modules according to claim 1, wherein: the number of the direct current power supplies is two, and one direct current power supply is used for standby under the control of the main control unit.
3. The mutual-backup control system for DC power supply modules according to claim 1, wherein: the main control unit presets a power parameter range of the direct current power supply in a normal working state, and when the power parameter of the direct current power supply in a power supply state is detected not to be in the preset direct current power supply parameter range, the main control unit controls the direct current power supply in the current power supply state to stop supplying power and synchronously starts other direct current power supplies to continuously supply power.
4. The mutual-backup control system for DC power supply modules according to claim 3, wherein: the main control unit enables the direct current power supply in the current power supply state to stop supplying power by disconnecting the direct current contactor connected with the direct current power supply in the current power supply state; and closing the direct current contactor connected with the direct current power supply in the standby state to supply power.
5. The mutual-backup control system for DC power supply modules according to claim 1, wherein: the main control unit stores the service time and the polling time of each working direct current power supply, and when the service time of the direct current power supply currently in the power supply state is equal to the polling time, the main control unit controls the on-off of the direct current contactor so as to switch the power supply state of the direct current power supply.
6. The mutual-backup control system for DC power supply modules according to claim 1, wherein: the direct current power supply is a drawer type power supply.
7. The mutual-backup control system for DC power supply modules according to claim 1, wherein: and the display screen is used for displaying power failure information.
8. The mutual-backup control system for DC power supply modules according to claim 1, wherein: the system also comprises a big data platform which is used for receiving the direct-current power supply voltage and the fault information and informing an administrator.
9. The mutual-backup control system for DC power supply modules according to claim 1, wherein: each direct current power supply comprises a single chip microcomputer, and the single chip microcomputer detects real-time power supply parameters of the direct current power supply and transmits the real-time power supply parameters to the main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121562580.5U CN215911904U (en) | 2021-07-09 | 2021-07-09 | Mutual backup control system for direct-current power supply modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121562580.5U CN215911904U (en) | 2021-07-09 | 2021-07-09 | Mutual backup control system for direct-current power supply modules |
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| Publication Number | Publication Date |
|---|---|
| CN215911904U true CN215911904U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121562580.5U Active CN215911904U (en) | 2021-07-09 | 2021-07-09 | Mutual backup control system for direct-current power supply modules |
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| CN (1) | CN215911904U (en) |
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2021
- 2021-07-09 CN CN202121562580.5U patent/CN215911904U/en active Active
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